help text: replace [OPTIONS] with actual options (if not too long)

function                                             old     new   delta
packed_usage                                       33620   33665     +45

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/procps/fuser.c b/procps/fuser.c
index 418f57b..1917467 100644
--- a/procps/fuser.c
+++ b/procps/fuser.c
@@ -19,7 +19,7 @@
 //kbuild:lib-$(CONFIG_FUSER) += fuser.o
 
 //usage:#define fuser_trivial_usage
-//usage:       "[OPTIONS] FILE or PORT/PROTO"
+//usage:       "[-msk46] [-SIGNAL] FILE or PORT/PROTO"
 //usage:#define fuser_full_usage "\n\n"
 //usage:       "Find processes which use FILEs or PORTs\n"
 //usage:     "\n	-m	Find processes which use same fs as FILEs"